<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8"/>
    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
    <meta name="viewport" content="width=device-width, initial-scale=1"/>
    <meta name="viewport"
          content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <title>音乐播放器登录页面</title>

    <!-- 1. 导入CSS的全局样式 -->
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <!-- 2. jQuery导入，建议使用1.9以上的版本 -->
    <script src="js/jquery-3.1.1.min.js"></script>
    <!-- 3. 导入bootstrap的js文件 -->
    <!--<script src="js/bootstrap.min.js"></script>-->
    <script type="text/javascript"></script>
    <style>
        #body {
            background-image: url("images/3.png");
            /*background-size:100% 100%;
            background-attachment: fixed;*/
        }
    </style>
    <script>
        // 核心业务逻辑
        $(function () {
            $("#submit").click(function () {
                var username = $("#user").val();
                var password = $("#password").val();

                if (username.trim() == "" || password.trim() == "") {
                    alert("用户名或者密码不能为空！");
                    return;
                }

                $.ajax({
                    url: "/user/login",
                    data: {"username": username, "password": password},
                    type: "POST",
                    dataType: "json",
                    success: function (data) {
                        console.log(data);
                        if (data.status == 0) {
                            alert("登录成功！");
                            //跳转到指定的页面了
                            window.location.href = "list.html";
                        } else {
                            alert("登录失败，密码或者用户名错误！");
                            $("#user").val("");
                            $("#password").val("");
                        }
                    }
                });
            });
        });
    </script>
</head>
<body id="body">
<div class="container" style="width: 400px;margin-top: 110px;background-color: rgba(255,255,255,0.8)">
    <h3 style="text-align: center;">音乐服务器登录界面</h3>
    <div class="form-group">
        <label for="user">用户名：</label>
        <input type="text" name="username" class="form-control" id="user" placeholder="请输入用户名"/>
    </div>

    <div class="form-group">
        <label for="password">密码：</label>
        <input type="password" name="password" class="form-control" id="password" placeholder="请输入密码"/>
    </div>

    <hr/>
    <div class="form-group" style="text-align: center;"><!--class="form-group"-->
        <input style="width: 200px;height: 40px" id="submit" class="btn btn btn-primary" type="button" value="登录">
    </div>
    <!-- 出错显示的信息框 -->
    <div class="alert alert-warning alert-dismissible" role="alert">
        <button type="button" class="close" data-dismiss="alert">
            <span>&times;</span>
        </button>
        <!-- <strong id="message">您尚未进行登录，请您登录!</strong> -->
    </div>
</div>
</body>
</html>